Limestone
Calcium Carbonate (CaCO3)
sedimentary
Category
Sedimentary (Processed Mineral Product)
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Processed Mineral Product) in the encyclopedia
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Serpentine
Serpentinite (rock) containing serpentine minerals (e.g., Antigorite, Lizardite, Chrysotile)
Metamorphic rock
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Beryl in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Lazulite
Magnesium Aluminum Phosphate Hydroxide (MgAl2(PO4)2(OH)2)
mineral
Mica Schist
Mica Schist (predominantly Muscovite or Biotite)
metamorphic
Lapis Lazuli
Sodalite-rich metamorphic rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
metamorphic
Okenite (in Zeolite matrix)
Okenite (CaSi2O5 · 2H2O)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Mineral
Quartz (Alluvial Pebbles)
Silicon Dioxide (SiO2)
mineral
Quartz with Pyrite inclusions
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Chalcopyrite (Peacock Ore)
Chalcopyrite (CuFeS2)
mineral
Milky Quartz or Calcite Pebble
Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)
mineral
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Antropogenic (Man-made glass byproduct)
Chert (specifically Jasper or Flint type)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Gastropod Fossil (Snail)
Gastropoda (Internal mold/Steinkern)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities
sedimentary
Red Jasper (with Quartz veining)
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Red Jasper (Polished)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Pink Tumbled Agate
Silicon Dioxide (SiO2) with dye
mineral
Jasper
Silicon Dioxide (SiO2)
Mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Conglomerate
Conglomerate
Sedimentary
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)
mineral
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Mineral
Purple Aventurine
Quartzite with Lepidolite (SiO2 + K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
metamorphic
Quartzite with Glauconitic or Iron staining
Quartzite (SiO2 with accessory minerals)
metamorphic
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Diorite
Diorite (Intermediate Plutonic Rock)
igneous
Mica Schist
Muscovite/Biotite Schist
metamorphic
Cullet (Slag Glass)
Amorphous Silica (SiO2) with various metal oxide colorants
mineraloid / anthropogenic
New Jade (Serpentine)
Antigorite / Serpentine group (Mg3Si2O5(OH)4)
metamorphic
Ammonite Fossil in Limestone Matrix
Ammonoidea (subclass) in Calcium Carbonate (CaCO3)
sedimentary
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
sedimentary
Sodalite in Matrix (Sunset Sodalite)
Sodalite Na8(Al6Si6O24)Cl2
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral